A compass with quick adjustment via self-running spindle combines speed and precision at the highest level. The centre drive screw with self-running spindle enables fast, finely adjusted radius setting without readjustment. Thanks to the adjustable straight tooth guide, the radius remains precisely fixed. Models with 1 or 2 knee joints can be flexibly extended – e.g. with pencil adapters or extension rods. Ideal for school, technology and demanding constructions.
